Yes, variants, that's what I meant to say.

Just in case you're interested, I just finished a test I did to try to improve the NVIS in the F14. I copied the A10's .fx file in the FSX main Effects folder, and renamed it the name that of the F14's .fx file, (basically I just replaced the F14.fx file with the A10's).

The result was the same as if I hadn't done anything at all but it did tell me that I am likely dealing with the canopy effect that Iris gave that f14, (a dirty/semi fog appearance at night).

Now if that's the case, then I think I may succeed if I compare the 2 planes files that deal with that effect. I just need to find where that command would be, (I'm guessing Textures).

The other possibility but less likely is the luminosity settings that are given in the Aircraft file. I think that's the very last set of commands in that file and I am going to compare them first because it's a lot easier than the Canopy Texture to try.

But it's likely to be the canopy texture anyway.